I've also been told that the customer service at Klingspor's Woodworking is very responsive to problems with their products. They've even replaced tools that failed through no fault of theirs, which is really nice of them. They are my go-to place for the hook & loop sanding pads.
The jury is still out on my new small Sand Flee. I'm having some set-up problems, but that may be due to my inexperience with a new tool. I'll let you know how I make out, especially if I need to contact their customer service.
Let me know if you've had any experiences, particularly good or bad, with any of the vendors I've recommended. If I make the recommendation, I do feel some responsibility for the outcome.